bump cobra to 1.3.0

This contains some fixes for the shell completion files.

[NO NEW TESTS NEEDED]

Signed-off-by: Paul Holzinger <pholzing@redhat.com>

vendor/github.com/spf13/cobra/args.go

@@ -107,3 +107,15 @@ func RangeArgs(min int, max int) PositionalArgs {
 		return nil
 	}
 }
+
+// MatchAll allows combining several PositionalArgs to work in concert.
+func MatchAll(pargs ...PositionalArgs) PositionalArgs {
+	return func(cmd *Command, args []string) error {
+		for _, parg := range pargs {
+			if err := parg(cmd, args); err != nil {
+				return err
+			}
+		}
+		return nil
+	}
+}